@Article{407105,
     author = "Henryk Gurgul, Milena Suliga, Tomasz Wójtowicz",
     title = "Responses of the Warsaw Stock Exchange to the U.S. Macroeconomic Data Announcements",
     year =  2012,
     volume =  12,
     number =  ,
     journal =  Managerial Economics,
     pages =  s. 41-60,
    }